Flushometer.



L. R. BURST.

FLUSHOMETER.

APPLICATION FILED AUG. 1, 1908.

Patented Apr. 6, 1909.

ATTORNE Y fill/WAHM J I Cri FIC

LINDSAY R. HURST, OF LOUISVILLE, KENTUCKY.

FLUsHoi/LETE'R.

Specication of Letters Patent.

Patented April 6, 1909.

Application filed August 1, 1908. Serial No. 446,435.

To all whom it may concern:

Be it known that I, InNnsAY R. Huns'r, a citizen of the `United States, residing at Louisville, inIl the county of Jefferson and State of Kentucky, have invented a new and useful l `lushomete1z` This invention relates to apparatus for flushing water closets, and the objects of my improvement are, simplicity of construction, case of operation, and comparative inexpensiveness of manufacture.

A further object is to provide a flushometer in which the flushfwat'er has a free passage therethrough and, therefore, there is a minimum retardation of the watery due toy friction inthe valve, consequently a comparatively small supply pipe may be used, this resulting in a reduction of the water rent in many localities. Y*

These objects I attain by means of the device illustrated in the accompanying drawinf,k in which- Q igure 1 is a central vertical sectional view taken on a plane passing through the inlet ports and the exhaust port; Fig. 2 is -a central vertical sectional view taken on a plane passing at right angles to that of Fig. 1; Fig. 3 is a horizontal sectional view on the line E F of Fig. l; and, Fig. 4 is a detail perspective view of the 'operatingsvalve Similar reference numerals refer to similar parts throughout the several views of the drawing.

The cylindrical shell, 1, constitutes the' body of the invention. VThis is surmounted by a head, 2, preferably threadedand l funnel 3, providing a free passage for the screwed into shell 1, and its lower end is provided with a funnel, 3, preferably attached to the lower end of shell 1 by a flange-joint, and adapted for connection with the flushorice' of the closet. Within 'shell 1, I have arranged an eccentrically positioned integral cylinder, 4, of somewhat smaller diameter than shell 1, so thaty a by-conduit, 5, is left on one side between it and the shell wall. Within cylinder 4, and arranged concentric therewith in its lower chamber, is a cylinder, 6, bored andl adapted to receive a piston, 7 which, in turn, is provided with a piston-rod, 8. Piston-rod 8 is guided by a bearing, 9, formed in a bridge, 10, which extends across the top of cylinder 6. The lower end of cylinder 6 communicates with by-conduit 5 by means of ports, 11, formed in the lower part of cylinder 4.

The ports 11 arek provided with a correspending valve to control them, which comprises a''at disk, 12, provided with ports,

'13, preferably diametrally arranged to correspond with the. arrangement of ports 11, and mounted loosely upon a square shaft, 14, so that it turns with the shaft when it is turned, but is at the same time permitted to slide longitudinally ofthe shaft and thus to be free to seat itself firmly over the mouth of ports 11. The outer end of shaft 14 protrudes in a rounded stem, 15, and 1s rotatably mounted in a bearing-plug, 1G, which, in turn, is screwed into a hole provided `therefor in the wall of Shell 1. Against the inside of the wall of-shell 1, on shaft 14, is secured a disk, 17. Between disk 1T. and valve-disk 12 is mounted a compres sion-spring,

firmly seated. The stem 15 is provided with a lever, 19, having a handle, 20, by means' of which the valve may be operated manu'- ally. Other means vof operating the valve may be provided, but I have here shown the preferable means. Near the bottom of the wall of cylinder (5 approximately opposite the parts 11, is a port, 21, for the exlt of water from under piston 7. This port is -provided with, and rendered adjustable by a needle-valve, 22, or similar means, for the purpose of timing the descent of piston 7 and its piston-rod 8. Port 21 communicates with the funnel 3.

Cylinder 6 is of somewhat smaller diame ter than cylinder 4, and therefore a passage,

18, adapted to keep the disks Q3, is provided by mea-ns of which the upper chamber of cylinder 4 communicates with is unseated, in order that it may assist piston 7 in its descent and render its action positive. i Y.

The head2 is provided at its upper end with a supply-pipe, Q8, which is screwed into an orifice provided therefor, arranged eccentrically in the cap, but concentric with valvel'seat 25, cylinder 6, and funnel 3.

losI

l the wall of shell 1.

` upon the funnel of head 24. 40. from plpe 28 now has direct and free course I prefer to form port 21 by boring through The hole thus formed is then counterbored and tapped out for Valve-screw 2,2, in order that valve-screw 22 may be readily accessible from the outside of the shell. The screw 22 may then be covered by means of a` cap, 29, screwed over la lug provided on the shell 1 therefor. By this means the valve may be easily and 1D quickly timed without removing any other parts sides the cap 29.

.The protruding stem 15, where lever 19 is attached, may be covered and )rotected by a sheet metal cap, 30, suitably s otted at the lower side to permit operating lever 1t).

Cylinder 6 is preferably closed at its lower end by a screw-plug, 31, which is provided with an upward-extending stern, 32, to limit the downward motion of piston 7, causing 20 it to rest just above port 2l.

The operation of the device will now be readily understood. When water under pressure is admitted to shell 1 through suppl pipe 28, it iills up the cavity in the funne -shaped head 24 and the by-conduit 5,

surroundin valve-plate 12, by which it is prevented from passing through ports 11. The ball-valve 26 prevents the water from passing through port 25. New if it is de- 30 sired to iush the closet, lever 19 is swung around by means of handle 20 to the position where ports 13, in disk 12 register with ports 11. rJlhe water under pressure now flows through ports 11, under piston 7, raising the piston and piston-rod 8, which, in

turn, raises and unseats ball-valve 26. When valve 26 is4 raised, it falls tol one side as shown by the dotted lines in-Fig. 1, and lies The water through valve-seat 25, upon disk 27, whence it overflows and rushes freely downward through passage 23 and through funnel 3 'to the closet bowl. If the operator has released lever 19, valve 12 has closed automaticall The ,water under piston 7 now radual y escapes through port 21 to the ush-pipe and allows piston 7 to sink gradually, responsive to the impact of the water above it'andy upon cup 27. When piston 7 has reached the lower limit of its travel, ball-valve 26 has rolled down funnel 24 and seated itself upon its seat 25, thus stopping the flow of theiush-water.

The quantity of water used in each Hushing operation may be regulated by adjusting valve 22 and thus timing the ,exhausty Having thus described my invention, so

that any one skilled in the art pertaining thereto may practice it, 1 claim- A ushometer, comprising a shell., 'a pipe connection in the top of said shell, a cylinder in said shell, a valve-seat. in said cylinder directly under said pipe connection, a ballvalve in operative relation to1 said' valveseat, a concentric cylinder directly -under said Valve-seat, a iston in said cylinder, a piston-rod adapted) to raise said ball-valve, a cup on said piston-rod adapted to receive the impact of the flush water flowing through said valve-seat, depress said pistonrod and allow said ball-valve to reseat, a passage around said concentric' cylinder through which the Hush-water passes to the flush-pipe, a by-conduit from the upper chamber of said. shell for leading a water under pressure to the bottom of said cylinder `under said piston, an inlet port in said cylmder, a rotary, manually operated valve controlling said inlet port, an exhaust port in said cylinder, adjustable timing means in said exhaust port, and a funnel directly under said cylinder. f LINDSAY R. HURST.

Witnesses:

F. I-I. NAPIER, W. B. MNNELL'. f 

